| Progress | Difficulty | Peak |
|---|---|---|
| Ep 1-26 | 2.04/5 | 4.54/5 |
| Ep 27-52 | 2.05/5 | 4.68/5 |
| Ep 53-78 | 2.10/5 | 4.60/5 |
| Ep 79-104 | 2.28/5 | 4.55/5 |
| Ep 105-130 | 1.87/5 | 4.65/5 |
| Ep 131-156 | 2.34/5 | 4.64/5 |
| Ep 157-182 | 1.91/5 | 4.54/5 |
| Ep 183-208 | 2.20/5 | 4.65/5 |
| Ep 209-234 | 2.02/5 | 4.55/5 |
| Ep 235-260 | 1.95/5 | 4.74/5 |
| Ep 261-286 | 1.74/5 | 4.81/5 |
| Ep 287-312 | 1.74/5 | 4.59/5 |
| Ep 313-338 | 1.52/5 | 4.45/5 |
| Ep 339-364 | 2.27/5 | 4.48/5 |
| Ep 365-390 | 2.78/5 | 4.61/5 |
| Ep 391-416 | 2.64/5 | 4.43/5 |
| Ep 417-442 | 2.18/5 | 4.46/5 |
| Ep 443-468 | 2.33/5 | 4.55/5 |
| Ep 469-494 | 2.78/5 | 4.39/5 |
| Ep 495-520 | 2.72/5 | 4.74/5 |
| Ep 521-546 | 2.64/5 | 4.59/5 |
| Ep 547-572 | 2.57/5 | 4.75/5 |
| Ep 573-598 | 2.67/5 | 4.37/5 |
| Ep 599-624 | 2.63/5 | 4.41/5 |
| Ep 625-627 | 2.81/5 | 4.21/5 |
| Overall | 2.26/5 | 4.81/5 |